BUGFIX: Always add space between IP and severity in file logs

[mtelgkamp]

For all IP addresses of length 15 or longer (most ipv6 addresses) no space was added between the IP address and the Severity.

This bugfix always adds a space character between IP and severity.

Review instructions

Check if IPv6 addresses are separated with a space in log files.

Checklist

• Code follows the PSR-2 coding style
• Tests have been created, run and adjusted as needed
• The PR is created against the lowest maintained branch
• Reviewer - PR Title is brief but complete and starts with FEATURE|TASK|BUGFIX
• Reviewer - The first section explains the change briefly for change-logs
• Reviewer - Breaking Changes are marked with !!! and have upgrade-instructions

[kitsunet]

Thank you for your first contribution. Small but very useful. Great that you found it.

Support for 7.3 is security only and as this is probably not a security risk it would have to move up to 8.3. We can take care of that though.

[dlubitz]

Thank you very much!

[dlubitz]

https://github.com/neos/flow-development-collection/actions/runs/11573510085

Now the tests are failing :/ Wondering why the tests didn't run on the PR. I'll fix the test.